CN203474347U - Electric hoist with automatic limit function - Google Patents
Electric hoist with automatic limit function Download PDFInfo
- Publication number
- CN203474347U CN203474347U CN201320536453.7U CN201320536453U CN203474347U CN 203474347 U CN203474347 U CN 203474347U CN 201320536453 U CN201320536453 U CN 201320536453U CN 203474347 U CN203474347 U CN 203474347U
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- CN
- China
- Prior art keywords
- photoelectric switch
- motor
- electric hoist
- relay
- receiving end
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- Expired - Lifetime
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Abstract
The utility model relates to an electric hoist with an automatic limit function. The electric hoist comprises a lifting hook, a motor and a rotary drum controlled by the motor. The lifting hook is mounted below the rotary drum. The electric hoist further comprises a replay, a motor switch circuit, a photoelectric switch transmitting end and a photoelectric switch receiving end. The photoelectric switch transmitting end and the photoelectric switch receiving end are respective mounted below the rotary drum and at two ends of the lifting hook. The normally open contact of the relay and the motor form a serial loop through the motor switch circuit. The normally closed contact of the photoelectric receiving end is connected with the coil contact of the relay. Compared with the prior art, the electric hoist has the advantages that the defect that the electric hoist is insufficient in mechanical limit, and the lifting hook of the electric hoist easily strikes the rotary drum is overcome, use safety of the electric hoist is increased, damage of the electric hoist can be avoided effectively.
Description
Technical field
The utility model relates to electric block technical field, is a kind of electric block with automatic spacing function specifically.
Background technology
At film line, cut packing shop, the use of electric block is frequency very, for key effect has been played in the raising of production efficiency and the assurance of quality.It is shorter that generally film line is cut the workshop top of packing shop, major-minorly squeezes into electric block between material because height of house limits, and causes setting height(from bottom) lower, and forced stroke height is lower.In order to meet need of work, in actual use mechanical stop is adjusted to the limit, but because mechanical shock reason easily causes the spacing work mal of mechanical stop.Finally cause hoist lifting hook to clash into cucurbit cylinder, discovering device fault, the personnel that even bring injure, and have larger potential safety hazard.How to develop and a kind ofly can there is automatic spacing function, thereby prevent that the electric block that hoist lifting hook clashes into cucurbit cylinder from having become urgent problem.
Utility model content
The purpose of this utility model is that the hoist lifting hook of being easily born clashes into the defect of cylinder safety misadventure, provides a kind of electric block with automatic spacing function to solve the problems referred to above in order to solve electric block mechanical position limitation deficiency in prior art.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of electric block with automatic spacing function, comprise suspension hook, motor and the cylinder of installing with electric machine control, described suspension hook is arranged on the below of cylinder, also comprise relay, motor switch circuit and be arranged on respectively photoelectric switch transmitting terminal and the photoelectric switch receiving end of cylinder below, described photoelectric switch transmitting terminal and photoelectric switch receiving end are arranged on respectively the two ends of suspension hook, the open contact of described relay forms series loop by motor switch circuit and motor, and the normally closed contact of described photoelectric switch receiving end is connected with the coil contact of relay.
Described photoelectric switch transmitting terminal and photoelectric switch receiving end are correlation type photoelectric switch.
Described relay is electromagnetic relay.
beneficial effect
A kind of electric block with automatic spacing function of the present utility model, has compared with prior art improved the safety in utilization of electric block, can effectively avoid the damage of electric block.By installing photoelectric switch and repeater additional, strengthened the assurance of electric block upper limit, when suspension hook arrives upper limit, impel motor auto-stop, avoided suspension hook to clash into cylinder, fundamentally guaranteed the safe operation of equipment.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Wherein, 1-motor, 2-cylinder, 3-suspension hook, 4-photoelectric switch transmitting terminal, 5-photoelectric switch receiving end, 6-relay, 7-motor switch circuit.
The specific embodiment
For making that architectural feature of the present utility model and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As shown in Figure 1, a kind of electric block with automatic spacing function described in the utility model, comprises suspension hook 3, motor 1 and controls with motor 1 cylinder 2 of installing, suspension hook 3 is arranged on the below of cylinder 2.Suspension hook 3, motor 1 and cylinder 2 have formed the basic composition of electric block.Also comprise relay 6, motor switch circuit 7 and be arranged on respectively the photoelectric switch transmitting terminal 4 and photoelectric switch receiving end 5 of cylinder 2 belows.Photoelectric switch transmitting terminal 4 and photoelectric switch receiving end 5 are arranged on respectively the two ends of suspension hook 3, and photoelectric switch transmitting terminal 4 is as the criterion with upper limit with the concrete distance and position of installing of photoelectric switch receiving end 5.When rising to upper limit, suspension hook 3 can not bump against cylinder 2, the position that photoelectric switch transmitting terminal 4 and photoelectric switch receiving end 5 are installed simultaneously also can detect suspension hook 3, and photoelectric switch transmitting terminal 4 can directly be monitored suspension hook 3 in real time with photoelectric switch receiving end 5 like this.The open contact of relay 6 forms series loop by motor switch circuit 7 and motor 1, motor switch circuit 7 is in order to control the opening and closing of motor 1, the open contact of relay 6 is connected in the loop of motor switch circuit 7 and motor 1, the control that open contact and the motor 1 of motor switch circuit 7 by relay 6 is held open and cuts out, the open contact of relay 6 guarantees at closure state for a long time.The normally closed contact of photoelectric switch receiving end 5 is connected with the coil contact of relay 6, if like this from the normally closed contact outgoing signal of photoelectric switch receiving end 5, just can directly affect and act on the coil contact of relay 6.
In order to guarantee better result of use, photoelectric switch transmitting terminal 4 is correlation type photoelectric switch with photoelectric switch receiving end 5, convenient so in actual use.Relay 6 is electromagnetic relay, and cost is lower in actual use, the use of electromagnetic relay characteristic is better.
In actual use, photoelectric switch receiving end 5 output 24V direct supplys, relay 6 coil contacts are kept closed while normally using, the closed conducting of relay 6 open contacts, motor switch circuit 7 is held open and closed state of a control by open contact and the motor 1 of relay 6, and photoelectric switch transmitting terminal 4 and photoelectric switch receiving end 5 are in normal connected state.Motor 1 drives cylinder 2 motions, the corresponding operating that suspension hook 3 is risen and declined.When suspension hook 3 is in uphill process, if reached upper limit, while soon having knocked cylinder 2, the photoelectric switch transmitting terminal 4 and the photoelectric switch receiving end 5 that are arranged on cylinder 2 belows are intercepted by suspension hook 3, in abnormal off-state.Now photoelectric switch receiving end 5 normally closed contacts disconnect, the power-off of 24V direct supply, relay 6 coil contact dead electricity, thereby cause relay 6 open contact actions to disconnect, affect circuit for controlling motor 7 simultaneously and disconnect, impel motor power-off to stop, suspension hook 3 stops rising, avoid suspension hook 3 to clash into cylinder 2, guaranteed the use safety of electric block.By relay 6 open contacts, can be when photoelectric switch transmitting terminal 4 and receiving end 5 faults or dead electricity, guarantee that electric block cannot upwards work, increase the safety in utilization of electric block.
More than show and described groundwork of the present utility model, principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification sheets, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (3)
1. the electric block with automatic spacing function, comprise suspension hook (3), motor (1) and the cylinder (2) of installing with motor (1) control, described suspension hook (3) is arranged on the below of cylinder (2), it is characterized in that: also comprise relay (6), motor switch circuit (7) and be arranged on respectively the photoelectric switch transmitting terminal (4) and photoelectric switch receiving end (5) of cylinder (2) below, described photoelectric switch transmitting terminal (4) and photoelectric switch receiving end (5) are arranged on respectively the two ends of suspension hook (3), the open contact of described relay (6) forms series loop by motor switch circuit (7) and motor (1), the normally closed contact of described photoelectric switch receiving end (5) is connected with the coil contact of relay (6).
2. a kind of electric block with automatic spacing function according to claim 1, is characterized in that: described photoelectric switch transmitting terminal (4) is correlation type photoelectric switch with photoelectric switch receiving end (5).
3. a kind of electric block with automatic spacing function according to claim 1, is characterized in that: described relay (6) is electromagnetic relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536453.7U CN203474347U (en) | 2013-08-30 | 2013-08-30 | Electric hoist with automatic limit function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536453.7U CN203474347U (en) | 2013-08-30 | 2013-08-30 | Electric hoist with automatic limit function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474347U true CN203474347U (en) | 2014-03-12 |
Family
ID=50222721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536453.7U Expired - Lifetime CN203474347U (en) | 2013-08-30 | 2013-08-30 | Electric hoist with automatic limit function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203474347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379828A (en) * | 2016-11-15 | 2017-02-08 | 攀钢集团工程技术有限公司 | Oblique-pulling-prevented electric hoist |
| CN111485275A (en) * | 2020-05-22 | 2020-08-04 | 太仓市海峰电镀有限公司 | Rack plating production line |
-
2013
- 2013-08-30 CN CN201320536453.7U patent/CN203474347U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379828A (en) * | 2016-11-15 | 2017-02-08 | 攀钢集团工程技术有限公司 | Oblique-pulling-prevented electric hoist |
| CN111485275A (en) * | 2020-05-22 | 2020-08-04 | 太仓市海峰电镀有限公司 | Rack plating production line |
| CN111485275B (en) * | 2020-05-22 | 2021-04-13 | 太仓市海峰电镀有限公司 | Rack plating production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230088 No.1000, Mingchuan Road, high tech Zone, Hefei City, Anhui Province Patentee after: Anhui Guofeng New Material Co.,Ltd. Address before: Tianzhi Road, national high tech Industrial Development Zone, Hefei City, Anhui Province, No. 36 230088 Patentee before: ANHUI GUOFENG PLASTIC CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |